博士（理学）, 東北大学

Game Informatics

ゲーム情報学

Informatics, Entertainment and game informatics

Informatics, Intelligent informatics

01 Apr. 2015
Graduate School of Informatics and Engineering, Associate Professor

01 Aug. 2010 - 31 Mar. 2015
Center for Frontier Science and Engineering, Assistant Professor

01 Apr. 2010 - 31 Jul. 2010
Center for the Advancement of Higher Education, Tohoku University, Assistant Professor

01 Apr. 2007 - 31 Mar. 2010
Graduate School of Science and Faculty of Science, Tohoku University, Assistant Professor

01 Jun. 2006 - 31 Mar. 2007
Graduate School of Science and Faculty of Science, Tohoku University, Research assistant

01 May 2003 - 31 May 2006
Chemistry Department at University of Toronto, Postdoctoral Research Fellow

01 Apr. 2000 - 31 Mar. 2003
Graduate School of Science and Faculty of Science, Tohoku University, Research Fellow of the Japan Society for the Promotion (DC1)

Nov. 2016 - Present
program committee of game programming workshop, Society

Nov. 2016 - Present
executive committee member of game programming workshop, Society

Oct. 2016 - Present
Executive committee of UEC cup computer Go, Society

Apr. 2015 - Present
情報処理学会ゲーム情報学運営委員, Society

Jun. 2016 - May 2022
Information Processing Society of Japan, 情報処理学会, Society

Nov. 2017 - Oct. 2019
program committee chair of game programming workshop, Society

Nov. 2022
情報処理学会ゲーム情報学研究会
NOCCA×NOCCAの強解決
GPW優秀論文賞, 山本敦也;保木邦仁

Nov. 2020
第1回世界将棋AI電竜戦（2020年11月）
第1回世界将棋AI電竜戦独創賞
Others

Jul. 2018
Computer Entertainment Developers Conference (CEDEC)
著述賞
CEDEC AWARDS 2018 特別賞, 伊藤毅志;保木邦仁;三宅陽一郎
Japan society, Japan

Mar. 2015
Information Processing Society of Japan (IPSJ)
長尾真記念特別賞
Japan society

Apr. 2014
International Computer Games Association (ICGA)
ICGA Journal Award
International society

May 2013
Computer Shogi Association (CSA)
第23回世界コンピュータ将棋選手権優勝

Nov. 2012
Taiwanese Association for Artificial Intelligence
Excellent Paper Award
International society

Nov. 2012
Taiwanese Association for Artificial Intelligence
Excellent Paper Award (TAAI 2012)
International society

Jan. 2008
情報処理学会
ソフトウエアジャパン2008アワード

May 2007
Computer Shogi Association
CSA貢献賞

May 2006
Computer Shogi Association (CSA)
第16回世界コンピュータ将棋選手権優勝

Mar. 2003
青葉理学振興会
平成14年度青葉理学振興会賞

Enumerating Pure Perfect Equilibria of Two-player Zero-sum Games with Perfect Information and Its Application to Entertainment Games
Kunihito Hoki; Masakazu Muramatsu; Satoshi Takahashi; Takahiro Watanabe
Lead, ゲーム理論ワークショップ, Mar. 2025
Symposium, English

A Study of Expansion of the Endgame Database of Backgammon
三納侑樹; 保木邦仁
Last, Game programming workshop, Nov. 2024, Peer-reviwed
Symposium, Japanese

Exploring the optimal strategy for two-player play in the card game "Love Letter"
田中仁; 保木邦仁
Last, Game programming workshop, Nov. 2024, Peer-reviwed
Symposium, Japanese

NOCCA × NOCCAの強解決
山本敦也; 保木邦仁
Last, 情報処理学会論文誌, 64, 12, 1678-1688, Dec. 2023, Peer-reviwed
Scientific journal, English

Shift Quality Classifier Using Deep Neural Networks on Small Data with Dropout and Semi-Supervised Learning
Takefumi KAWAKAMI; Takanori IDE; Kunihito HOKI; Masakazu MURAMATSU
IEICE Transactions on Information and Systems, Institute of Electronics, Information and Communications Engineers (IEICE), E106.D, 12, 2078-2084, 01 Dec. 2023, Peer-reviwed
Scientific journal, English

Method for constructing artificial intelligence player with abstractions to Markov Decision processes in multiplayer game of Mahjong
Moyuru Kurita; Kunihito Hoki
IEEE Transactions on Games, 13, 1, 99-110, Mar. 2021, Peer-reviwed
Scientific journal, English

Development of Artificial Intelligence to Classify Quality of Transmission Shift Control Using Deep Convolutional Neural Networks
Takefumi Kawakami; Takanori Ide; Eiji Moriyama; Kunihiro Hoki; Masakazu Muramatsu
IEEE Transactions on Vehicular Technology, 69, 12, 16168-16172, Dec. 2020, Peer-reviwed
Scientific journal, English

Recognizing Similarities in Automatic Transmissions of Vehicles by Using Time Series Data and Autoencorders
Takefumi Kawakami; Takanori Ide; Kiyohisa Tomita; Eiji Moriyama; Kunihito Hoki; Masakazu Muramatsu
WCX SAE World Congress Experience, 2019-01-0343, Apr. 2019, Peer-reviwed
International conference proceedings, English

Reinforcement Learning of Elementary Action Knowledge of Digital Curling
Ryohei Matsui; Kunihito Hoki
IPSJ Journal, Information Processing Society of Japan, 59, 11, 2063-2073, 15 Nov. 2018, Peer-reviwed
Scientific journal, Japanese

Classification of Time Series Measurement Data for Lock-Up Clutch of Automatic Transmission of Vehicles Using Deep Convolutional Neural Networks
Takefumi Kawakami; Takanori Ide; Kiyohisa Tomita; Eiji Moriyama; Hiroshi Tsutsui; Kunihito Hoki; Masakazu Muramatsu
SAE Technical Papers, SAE International, 2018-, 2018, Peer-reviwed
International conference proceedings, English

Development of mahjong player on the basis of kyoku abstraction for multiple goals and value inference
栗田萌; 保木邦仁
Last, Game programming workshop, Nov. 2017, Peer-reviwed
Symposium, Japanese

Search algorithm of single-player mahjong represented by directed acyclic graph
栗田萌; 保木邦仁
Last, Game programming workshop, Nov. 2017, Peer-reviwed
Symposium, Japanese

Improved simulation adjusting
Nobuo Araki; Kunihito Hoki; Masakazu Muramatsu
ICGA Journal, International Computer Games Association, 39, 3-4, 195-204, 2017, Peer-reviwed
Scientific journal, English

Pure Nash equilibria of competitive diffusion process on toroidal grid graphs
Yuki Sukenari; Kunihito Hoki; Satoshi Takahashi; Masakazu Muramatsu
DISCRETE APPLIED MATHEMATICS, 215, C, 31-40, Dec. 2016, Peer-reviwed
Scientific journal, English

畳み込みニューラルネットワークを用いた囲碁における 畳み込みニューラルネットワークを用いた囲碁における一局の棋譜からの棋力推定
荒木伸夫; 保木邦仁; 村松正和
情報処理学会論文誌, 57, 11, 2365-2373, 2016, Peer-reviwed, 囲碁のプロ棋士は，1局の棋譜を見ればプレイヤの棋力が分かるといわれている．本稿では，畳み込みニューラルネットワーク（Convolutional Neural Network; CNN）を使用し，1局の囲碁の棋譜より，プレイヤの棋力を推定する手法を提案する．プレイヤのレート値を推定する実験と，プレイヤを上級/中級/初級にクラス分けする実験を行った．提案手法を実装して囲碁クエストの13路盤棋譜データを用いて学習させて実験したところ，レート値を推定する手法としては従来手法より平均自乗誤差が小さくなった．また，クラス分類する実験においては，1度CNNを用いてレート値を推定してからその値に応じてクラス分けを行う手法と，最初からクラス分類をCNNに学習させる手法の2種類を提案し，それぞれ長所と短所があることを確かめた．It is said that any professional player can estimate a player's strength accurately by looking at just one game record. We propose to use Convolutional Neural Network (CNN) to estimate a Go player's strength from only one game record. We perform two experiments: (i) to estimate a player's rating, and (ii) to classify a player into three classes in strength. We use game records provided by GoQuest to train CNN. For estimating ratings, we compare our method with an existing method to find that our method gives a smaller average mean squared error than that of the existing method. For the classification, we compare two methods: (i) the method that classify a player according to the rating predicted by the CNN, and (ii) the method that trains CNN directly to classify a player based on just one game record. We observed that the two methods have different strong points and weak points.
Scientific journal, Japanese

Human-Like Build-Order Management in StarCraft to Win against Specific Opponent's Strategies
Hiroto Takino; Kunihito Hoki
3RD INTERNATIONAL CONFERENCE ON APPLIED COMPUTING AND INFORMATION TECHNOLOGY (ACIT 2015) 2ND INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE AND INTELLIGENCE (CSI 2015), 97-102, 2015, Peer-reviwed
International conference proceedings, English

Analysis of Performance of Consultation Methods in Computer Chess
Kunehito Hoki; Seya Omori; Takeshi Ito
JOURNAL OF INFORMATION SCIENCE AND ENGINEERING, 30, 3, 701-712, May 2014, Peer-reviwed
Scientific journal, English

Large-Scale Optimization for Evaluation Functions with Minimax Search
Kunihito Hoki; Tomoyuki Kaneko
Lead, JOURNAL OF ARTIFICIAL INTELLIGENCE RESEARCH, 49, 527-568, 2014, Peer-reviwed
Scientific journal, English

Monte-Carlo simulation Adjusting
N. Araki; M. Muramatsu; K. Hoki; S. Takahashi
the Twenty-Eighth AAAI Conference on Artificial Intelligence, AI Access Foundation, 4, 3094-3095, 2014, Peer-reviwed
International conference proceedings, English

PARALLEL DOVETAILING AND ITS APPLICATION TO DEPTH-FIRST PROOF-NUMBER SEARCH
Kunihito Hoki; Tomoyuki Kaneko; Akihiro Kishimoto; Takeshi Ito
ICGA JOURNAL, 36, 1, 22-36, Mar. 2013, Peer-reviwed
Scientific journal, English

A System-Design Outline of the Distributed-Shogi-System Akara 2010
Kunihito Hoki; Tomoyuki Kaneko; Daisaku Yokoyama; Takuya Obata; Hiroshi Yamashita; Yoshimasa Tsuruoka; Takeshi Ito
2013 14TH ACIS INTERNATIONAL CONFERENCE ON SOFTWARE ENGINEERING, ARTIFICIAL INTELLIGENCE, NETWORKING AND PARALLEL/DISTRIBUTED COMPUTING (SNPD 2013), 0, 466-471, 2013, Peer-reviwed
International conference proceedings, English

Distributed-Shogi-System Akara 2010 and its Demonstration
K. Hoki; T. Kaneko; D. Yokoyama; T. Obata; H. Yamashita; Y. Tsuruoka; T. Ito
International Journal of Computer & Information Science, International Association for Computer and Information Science (ACIS), 14, 55-63, 2013, Peer-reviwed
Scientific journal, English

Theoretical verification of nonthermal microwave effects on intramolecular reactions
Manabu Kanno; Kosuke Nakamura; Eri Kanai; Kunihito Hoki; Hirohiko Kono; Motohiko Tanaka
The Journal of Physical Chemistry, ACS Publications, 116, 2177-2183, Feb. 2012, Peer-reviwed
Scientific journal, English

Theoretical investigation of the structures and dynamics of crystalline molecular gyroscopes
Anant Babu Marahatta; Manabu Kanno; Kunihito Hoki; Wataru Setaka; Stephan Irle; Hirohiko Kono
Journal of Physical Chemistry C, ACS Publications, 116, 46, 24845-24854, 2012, Peer-reviwed
Scientific journal, English

Performance Analysis of Consultation Methods in Computer Chess
Seiya Omori; Kunihito Hoki; Takeshi Ito
2012 CONFERENCE ON TECHNOLOGIES AND APPLICATIONS OF ARTIFICIAL INTELLIGENCE (TAAI), 171-175, 2012, Peer-reviwed
International conference proceedings, English

Efficiency of three forward-pruning techniques in shogi: Futility pruning, null-move pruning, and Late Move Reduction (LMR)
Kunihito Hoki; Masakazu Muramatsu
Entertainment Computing, Elsevier B.V., 3, 3, 51-57, 2012, Peer-reviwed
Scientific journal, English

Analysis of evaluation-function learning by comparison of sibling nodes
Tomoyuki Kaneko; Kunihito Hoki
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 7168, 158-169, 2012, Peer-reviwed
International conference proceedings, English

The global landscape of objective functions for the optimization of shogi piece values with a game-tree search
Kunihito Hoki; Tomoyuki Kaneko
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 7168, 184-195, 2012, Peer-reviwed
International conference proceedings, English

Experimental and theoretical investigations of isomerization reactions of ionized acetone and its dimer
Yoshiyuki Matsuda; Kunihito Hoki; Satoshi Maeda; Ken-ichi Hanaue; Keisuke Ohta; Keiji Morokuma; Naohiko Mikami; Asuka Fujii
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 14, 2, 712-719, 2012, Peer-reviwed
Scientific journal, English

Excitation of Biomolecules by Coherent vs. Incoherent Light: Model Rhodopsin Photoisomerization
Kunihito Hoki; Paul Brumer
Procedia Chemistry, Elsevier BV, 3, 1, 122-131, 2011, Peer-reviwed
Scientific journal

Consultation Algorithm for Computer Shogi: Move Decisions by Majority
Takuya Obata; Takuya Sugiyama; Kunituto Hoki; Takeshi Ito
COMPUTERS AND GAMES, 6515, 156-+, 2011, Peer-reviwed
International conference proceedings, English

Optimistic Selection Rule Better Than Majority Voting System
Takuya Sugiyama; Takuya Obata; Kunihito Hoki; Takeshi Ito
COMPUTERS AND GAMES, 6515, 166-+, 2011, Peer-reviwed
International conference proceedings, English

将棋における合議アルゴリズム―局面評価値に基づいた指し手の選択
杉山卓弥; 小幡拓弥; 斉藤博昭; 保木邦仁; 伊藤毅志
情報処理学会論文誌, 情報処理学会, 51, 11, 2048-2054, 2010, Peer-reviwed
Scientific journal, Japanese

将棋における合議アルゴリズム―多数決による手の選択―
Takeshi Ito; Takuya Obata; Takuya Sugiyama; Kunihito Hoki
情報処理学会論文誌, 52, 11, 3030-3037, 2010, Peer-reviwed
Scientific journal, Japanese

Quantum dynamics of light-driven chiral molecular motors
Masahiro Yamaki; Shin-ichiro Nakayama; Kunihito Hoki; Hirohiko Kono; Yuichi Fujimura
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 11, 11, 1662-1678, 2009, Peer-reviwed
Scientific journal, English

Dissipation effects on laser control of cis/trans isomerization
Kunihito Hoki; Paul Brumer
CHEMICAL PHYSICS LETTERS, 468, 1-3, 23-27, Jan. 2009, Peer-reviwed
Scientific journal, English

Quantum control of a chiral molecular motor driven by femtosecond laser pulses: Mechanisms of regular and reverse rotations
M. Yamaki; K. Hoki; H. Kono; Y. Fujimura
CHEMICAL PHYSICS, 347, 1-3, 272-278, May 2008, Peer-reviwed
Scientific journal, English

Quantum optimal control of electron ring currents in chiral aromatic molecules
Manabu Kanno; Kunihito Hoki; Hirohiko Kono; Yuichi Fujimura
JOURNAL OF CHEMICAL PHYSICS, 127, 20, 204314-1-204314-9, Nov. 2007, Peer-reviwed
Scientific journal, English

Theoretical Design of an Aromatic Hydrocarbon Rotor Driven by a Circularly Polarized Electric Field
Masahiro Yamaki; Kunihito Hoki; Takato Teranishi; Wilfredo Credo Chung; Fabio Pichierri; Hirohiko Kono; Yuichi Fujimura
Journal of Physical Chemistry A, American Chemical Society, 111, 9374-9378, Aug. 2007, Peer-reviwed
Scientific journal, English

Calculation of the cross section of epithermal neutron scattering from water by a time-dependent wavepacket approach
Seiichi Tanabe; Kunihito Hoki; Hirohiko Kono; Yuichi Fujimura
CHEMICAL PHYSICS LETTERS, 437, 4-6, 267-271, Apr. 2007, Peer-reviwed
Scientific journal, English

An analysis of two liquid-state adaptive feedback experiments
Paul Brumer; Kunihito Hoki; Michael Spanner
ISRAEL JOURNAL OF CHEMISTRY, 47, 1, 111-114, 2007, Peer-reviwed
Scientific journal, English

Mechanisms in Adaptive Feedback Control: Photoisomerization in a Liquid
Kunihito Hoki; Paul Brumer
Physical Review Letters, American Physical Society (APS), 95, 16, 12 Oct. 2005, Peer-reviwed
Scientific journal

Quantum control of unidirectional rotations of a chiral molecular motor
M. Yamaki; K. Hoki; Y. Ohtsuki; H. Kono; Y. Fujimura
Phys. Chem. Chem. Phys., 7, 1900-1904, Apr. 2005, Peer-reviwed
English

Quantum control of a chiral molecular motor driven by laser pulses
M. Yamaki; K. Hoki; Y. Ohtsuki; H. Kono; Y. Fujimura
J. Am. Chem. Soc., 127, 7300-7301, Apr. 2005, Peer-reviwed
English

Quantum control of a chiral molecular motor driven by linearly polarized laser pulses
M. Yamaki; K. Hoki; Y. Ohtsuki; H. Kono; Y. Fujimura
in “Ultrafast Phenomena XIV”, 508-510, 2005, Peer-reviwed
English

Sequential pump-dump control of photoisomerization competing with photodissociation of optical isomers
Kunihito Hoki; Leticia González; Mohamed F. Shibl; Yuichi Fujimura
Journal of Physical Chemistry A, 108, 31, 6455-6463, 05 Aug. 2004, Peer-reviwed
Scientific journal, English

Chiral Molecular Motors Ignited by Femtosecond Pump-Dump Laser Pulses
Kunihito Hoki; Makoto Sato; Masahiro Yamaki; Riadh Sahnoun; Leticia González; Shiro Koseki; Yuichi Fujimura
Journal of Physical Chemistry B, American Chemical Society, 108, 15, 4916-4921, 15 Apr. 2004
Scientific journal, English

Mechanism of unidirectional motions of chiral molecular motors driven by linearly polarized pulses
Kunihito Hoki; Masahiro Yamaki; Shiro Koseki; Yuichi Fujimura
Journal of Chemical Physics, 119, 23, 12393-12398, 15 Dec. 2003, Peer-reviwed
Scientific journal, English

Chiral molecular motors driven by a nonhelical laser pulse
Kunihito Hoki; Masahiro Yamaki; Yuichi Fujimura
Angewandte Chemie - International Edition, 42, 26, 2976-2978, 07 Jul. 2003, Peer-reviwed
Scientific journal, English

Molecular motors driven by laser pulses: Role of molecular chirality and photon helicity
Kunihito Hoki; Masahiro Yamaki; Shiro Koseki; Yuichi Fujimura
Journal of Chemical Physics, 118, 2, 497-504, 08 Jan. 2003, Peer-reviwed
Scientific journal, English

Quantum control of molecular handedness in a randomly oriented racemic mixture using three polarization components of electric fields
Kunihito Hoki; Leticia González; Yuichi Fujimura
Journal of Chemical Physics, 116, 20, 8799-8802, 22 May 2002, Peer-reviwed
Scientific journal, English

Control of molecular handedness using pump-dump laser pulses
Kunihito Hoki; Leticia González; Yuichi Fujimura
Journal of Chemical Physics, 116, 6, 2433-2438, 08 Feb. 2002, Peer-reviwed
Scientific journal, English

From a racemate to a pure enantiomer by laser pulses: Quantum model simulations for H2POSH
Yuichi Fujimura; Leticia Gonzlez; Kunihito Hoki; Dominik Krner; Jrn Manz; Yukiyoshi Ohtsuki
Angewandte Chemie - International Edition, 39, 24, 4586-4588, 15 Dec. 2000
Scientific journal, English

Quantum Control of NaI Predissociation in Subpicosecond and Several-Picosecond Time Regimes
K. Hoki; Y. Ohtsuki; H. Kono; Y. Fujimura
Journal of Physical Chemistry A, 103, 32, 6301-6308, Jul. 1999, Peer-reviwed
Scientific journal, English

Quantum control of the photodissociation of sodium iodide
K. Hoki; Y. Ohtsuki; H. Kono; Y. Fujimura; S. Koseki
Bulletin of the Chemical Sociey of Japan, 72, 12, 2665-2671, 1999, Peer-reviwed
Scientific journal, English

AobaZero の高速化と現在の状況
山下宏; 保木邦仁; 小林祐樹
コンピュータ将棋協会, Mar. 2021, コンピュータ将棋協会誌, 32, 72-86, Japanese, Introduction other

深層畳み込みニューラルネットワークによる 自動車用オートマチックトランスミッションの制御に現れる時系列データの2値分類
井手貴範; 川上雄史; 保木邦仁; 村松正和
日本応用数理学会, Sep. 2020, 応用数理 インダストリアルマテリアルズ, 30, 3, 120-124, Japanese, Introduction scientific journal

AobaZero の紹介と観戦記
山下宏; 保木邦仁; 小林祐樹
Mar. 2020, コンピュータ将棋協会誌, 31, 38-44, Japanese, Introduction other

"Machine Learning of Positional Evaluation, Brute-Force Search, and Consultation Method in Computer Shogi"
Kunihito Hoki
Sep. 2012, Journal of the Japan Society for Management Information, 21, 2, 97-100, Japanese, Introduction other

Unexpected Common Ground between Chemistry and Game Informatics
Kunihito Hoki
This article reviews recent advances in computer games. It is explained that methods famous in computational chemistry have enhanced the performance of Go and shogi programs. A history of the grand challenge in computer science that aims to defeat human experts in games is briefly summarized., Japan Society for Molecular Science, 2012, Molecular Science, 6, 1, A0050, Japanese, Peer-reviwed, Introduction other, 1881-8404, 130002126146

コンピュータ将棋が採用している局面評価の機械学習・力づく探索・合議法
保木邦仁
経営情報学会誌編集事務局, 2012, 経営情報学会誌, 21, 2, 97-100, Japanese, Introduction other, 0918-7324, 40019453877, AN10551813

Effective Branching Factors of Bonanza and Crafty (Frontiers of Computer Shogi (1))
Kunihito Hoki
人工知能学会, May 2011, Journal of Japanese Society for Artificial Intelligence, 26, 3, 295–300-300, Japanese, Introduction other, 0912-8085, 110008662159, AN10067140

URL

Way to Victory of AKARA2010 : 2. An Outline of the System Design and Operation of Akara 2010
Kunihito Hoki; Tomoyuki Kaneko; Daisaku Yokoyama; Takuya Obata; Hiroshi Yamashita
Feb. 2011, IPSJ Magazine, 52, 2, 162–168, Japanese, Introduction other

Way to Victory of AKARA2010 : 4. Ichiyo Shimizu vs Akara 2010 : Reviewing the Computers' Thinking Processes
Yoshimasa Tsuruoka; Tomoyuki Kaneko; Hiroshi Yamashita; Kunihito Hoki
情報処理学会, Feb. 2011, IPSJ Magazine, 52, 2, 175-180, Japanese, Introduction other, 0447-8053, 110008507309, AN00116625

Landscape for optimization problem of minimax search
保木 邦仁; 金子 知適
将棋において局面評価関数の機械学習が成功を収めている。この学習法では、局面評価関数の特徴ベクトルvを調整してminimax探索を棋譜データに沿って最適化する。本研究では、この最適化に用いられる関数J(v)の形状を、連続性、偏微分不可能性、極小点をどの程度持つかという点に焦点を絞り解析し、結果を報告する。In Shogi, machine learning of the positional evaluation function has proved successful. The learning method adjusts the feature vector v of the positional evaluation function by solving an optimization problem of minimax search in accordance with professional game scores. In this paper, we analyze properties of the function J(v) to be optimized in terms of continuity, partial differentiability, and number of local minima., 12 Nov. 2010, ゲームプログラミングワークショップ2010論文集, 2010, 12, 67-70, Japanese, 170000063551, AA12496601

全遷移状態の自動探索アルゴリズム
2009, 化学同人 化学, 64, 70-71, Japanese, Introduction scientific journal

Optical control of chiral molecular motors
Kunihito Hoki; Masahiro Yamaki; Yuichi Fujimura
2008, Springer Series in Chemical Physics, 89, 93-112, English, Book review, 0172-6218, 59249089441

Control of Molecular Chirality by Lasers
2008, Advances in Multi-Photon Processes and Spectroscopy, 18, 245-290, Japanese, Introduction scientific journal

ーザーによるキラル分子の回転方向制御のシミュレーション：光駆動キラル分子モーター
2008, 化学同人 最新分子マシン, ,128-131, Japanese, Introduction commerce magazine

コンピュータ将棋における全幅探索とfutility pruningの応用
Kunihito Hoki
2006, IPSJ Magazine, 47, 884–889, Japanese, Introduction other

ゲーム情報学概論－ゲームが切り拓く人工知能－
伊藤毅志; 保木邦仁; 三宅一郎
Textbook, Japanese, Joint work, 第II部ゲーム情報学のアルゴリズム, コロナ社, 2018

人工知能学大辞典
保木邦仁
Dictionary or encycropedia, Japanese, Contributor, 章：ゲーム、見出し：Bonanza, 人工知能学会, Jul. 2017

文殊の誕生，あから2010の人間への挑戦，人間に勝つコンピュータ将棋の作り方【あから2010を生み出したアイデアと工夫の軌跡】
Kunihito Hoki
Japanese, Joint work, 数の暴力で人間に挑戦！ Bonanzaの誕生, Gijyutsu Hyoronsya, Nov. 2012

数の暴力で人間に挑戦！ Bonanza の誕生，人間に勝つコンピュータ将棋の作り方【あから2010を生み出したアイデアと工夫の軌跡】
Kunihito Hoki
Japanese, Joint work, 数の暴力で人間に挑戦！ Bonanzaの誕生, Gijyutsu Hyoronsya, Nov. 2012

Advances in Computer Shogi
Kunihito Hoki
Japanese, Joint work, Bonanza 4.1.3 ソースコードの解説, kyoritsu publishing, May 2012

ボナンザVS勝負脳―最強将棋ソフトは人間を超えるか
保木邦仁; 渡辺明
Japanese, Joint work, 角川書店, Aug. 2007

着手の不可逆的性質を利用したDFPN探索によるYonmoqueの求解
中川憲; 荒井光; 保木邦仁; 村松正和
Oral presentation, Japanese, 情報処理学会ゲーム情報学(GI),研究報告 2013-GI-29 No.6, Domestic conference
2013

コンピュータ大貧民に対する差分学習法の応用
小沼啓; 本多武尊; 保木邦仁; 西野哲朗
Others, Japanese, 情報処理学会ゲーム情報学(GI),研究報告 2012-GI-27 No. 1
2012

チェスプログラムを用いた合議アルゴリズムの効果の検証
大森誠也; 保木邦仁; 伊藤毅志
Others, Japanese, 情報処理学会ゲーム情報学(GI),研究報告, 26, pp. 17, 2011
2011

Special Lecture on Informatics and Engineering A （Learn to Play Games Called Mind Sports ）
The University of Electro-Communications

西東京三大学英語化科目 学域特別講義A（マインドスポーツゲーム を学ぶ）
電気通信大学

Graduate Technical English
The University of Electro-Communications

大学院技術英語
電気通信大学

Advanced Internship
The University of Electro-Communications

大学院インターンシップ
電気通信大学

Internship
The University of Electro-Communications

インターンシップ（Ⅰ類）
電気通信大学

AI・セキュリティー 人材育成プログラム ゲーム人工知能概論
電気通信大学 社会人履修証明プログラム

AI・セキュリティー 人材育成プログラム ゲーム人工知能概論
電気通信大学 社会人履修証明プログラム

MICS Science Laboratory II A, B
The University of Electro-Communications

MICS 実験第二 A, B
電気通信大学

game informatics
The University of Electro-Communications

Special Lecture on Informatics and Engineering A(Learn to Play Games Called Mind Sports)
The University of Electro-Communications

学域特別講義A（マインドスポーツゲームを学ぶ）
電気通信大学

ゲームの数理
The University of Electro-Communications

総合コミュニケーション科学模擬授業
The University of Electro-Communications

イノベイティブ総合コミュニケーションデザイン１
The University of Electro-Communications

イノベイティブ総合コミュニケーションデザイン１
電気通信大学

ゲームの数理
電気通信大学

世界強要プログラム：現代社会の諸問題において顕在化する科学技術
東京外語大学

総合コミュニケーション科学模擬授業
電気通信大学

世界強要プログラム：現代社会の諸問題において顕在化する科学技術
東京外語大学

世界強要プログラム：現代社会の諸問題において顕在化する科学技術
東京外語大学

情報通信演習2
The University of Electro-Communications

情報通信演習2
電気通信大学

情報数理工学実験第二
The University of Electro-Communications

情報数理工学実験第二
電気通信大学

ゲーム情報学
The University of Electro-Communications

ゲーム情報学
電気通信大学

応用数学A
The University of Electro-Communications

応用数学A
電気通信大学

Apr. 2011 - Present
Information Processing Society of Japan

Apr. 2011 - Present
The Japanese Society for Artificial Intelligence

将棋人工知能に関するディープマインド社の大規模実験とその知識獲得過程の検証
保木 邦仁; 伊藤 毅志
日本学術振興会, 科学研究費助成事業, 電気通信大学, 基盤研究(C), Silver らは 2019 年、囲碁・将棋などの知識を自己対局形式により獲得する人工知能プレイヤの強化学習アルゴリズム AlphaZero とその実験結果をサイエンス誌で発表した。本研究では、この先行研究の将棋における大規模実験の追試を市場に出回っているハードウエアを用いて行い、強化学習過程や生成された人工知能の性能を観測し、AlphaZero が将棋知識を獲得する過程を分析する。 申請者は追実験を行うため、グラフィックス・プロセッシング・ユニット (GPU) を活用した自己対局生成の計算効率を追求した。NVIDIA 社の一個15万円程度の GPU (GeForce RTX 2080) を用いて、日産１万局程度の効率を達成した。現在申請者が参加している追実験のプロジェクトでは、市販ハードウエアのみを用いて構築された追実装は、AlphaZero の将棋の実験に準じた性能を獲得している (山下宏、保木邦仁、小林祐樹、AobaZero の高速化と現在の状況、コンピュータ将棋協会誌、vol. 32, pp. 72-86, 2021)。 申請者は現在、計算機実験を行う環境整備に取り組み、性能評価を行うための実装について検討中である。, 20K12120
01 Apr. 2020 - 31 Mar. 2023

人智を超えるゲームAIを利用した知の拡張
伊藤 毅志; 保木 邦仁; 山本 雅人; 松原 仁; 池田 心
日本学術振興会, 科学研究費助成事業, 電気通信大学, 基盤研究(B), 本研究の目標は、ゲームAIと人間の思考の違いを理解して、人智を超えたゲームAIの思考を人間に理解しやすい形に表示して、人間の知を拡張する手法を提案し、その効果について認知的評価を試みることである。 その目標を達成するために、ゲームAIの強化と思考の可視化について、研究を進めてきた。将棋の分野では、人間を超える将棋AIの出現が人間に与える影響に関する研究を進めており、そのテストケースとして、小路盤の将棋としての５五将棋を題材として、人間を遥かに凌駕するレベルのAIを実現した。このAIを用いることで、将棋の亜種のゲームに関する様々な知見を深めることが出来た。また、人間を超える将棋AIの出現前後のトッププロ棋士の棋譜と将棋AIとの手の一致率を調べる研究を行って、何らかの影響を受けている可能性があることが示唆された。 囲碁の分野では、ポリシーネットワークの可視化技術について、研究を行った。人間の理解の困難な深層学習の可視化技術は、現在様々な形で求められている。多人数不完全情報ゲームである麻雀に関してもAIプレイヤの強化を図っている。 カーリングの分野では、実環境のデータを組み込むためのシミュレーターの基礎研究を進めており、高度な不確定情報を含むゲームにおける実環境データの再現を試みている。人狼を対象とした分野では、人間特有の意思決定過程に関するモデルの提案を行った。人狼AIへの応用を考えるとともに、高度に複雑なコミュニケーションを必要とする人狼における知の拡張について考察を深めている。, 18H03347
01 Apr. 2018 - 31 Mar. 2023

Applying heuristics to complex games close to real-world competition
Hoki Kunihito
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), Aiming to develop competitive artificial intelligence by achieving the scale-up of existing heuristics in games that are close to competition in the real world, where there are many options for actions, and situations and state transitions can only be partially observed. This research was carried out by using Go, Mahjong, a card game, chess, digital curling, etc., provided a new algorithm to realize the aim, and was published in several papers., 16K00503
01 Apr. 2016 - 31 Mar. 2020

Development of ensemble game tree search method
Hoki Kunihito
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Young Scientists (B), We analyzed ensemble methods to avoid decision error of artificial intelligence. Specifically, we took mind sports games such as chess as research targets, and aimed at elimination of blunders by composing an ensemble of artificial intelligence. The major outcomes of this research were published as: (i) K. Hoki, T. Kaneko, A. Kishimoto, T. Ito, Parallel Dovetailing and Its Application to Depth-First Proof Number Search, ICGA Journal, 36, 22-36, 2013. (ii) K. Hoki, S. Omori, T. Ito, Analysis of Performance of Consultation Methods in Computer Chess, Journal of Information Science and Engineering, 30, 701-712, 2014., 25730212
01 Apr. 2013 - 31 Mar. 2016

Research on the game AI that makes human-lile mistakes
Takeshi Ito; HOKI KUNIHITO; NISHINO TETSURO; MUNEKATA NAGISA; KATAYOSE HARUHIRO; IKEDA KOKOLO
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), In this research, we focused on mistakes of human. We got the following research results by aiming at making game AI that makes human-like mistakes. 1) Classification by focusing on the cause of a mistake in human playing games.2) Proposal of a game AI with the model in consideration of human biological restrictions.3) Proposal and estimation of a game AI that adjust the strength in a game automatically and direct to a good game.4) Proposal of a game AI that realizes a human-like play by giving the "flow". These research results bring new evaluation other than the directivity of "strength" to game AI and serve as new indicator to generate the various game AI., 25280130
01 Apr. 2013 - 31 Mar. 2016

Simulating brain functions based on computational learning theory
NISHINO Tetsuro; TANAKA Shigeru; YAMAZAKI Tadashi; HOKI Kunihito
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), In this study, we construct various models of brain functions, such as motion, thinking and memory based on computational learning theory, and analyze their behavior in the following fashion: (1) we construct a state transition model for the motion and simulate the robot motion using this model, (2) we construct a neural network model for the memory and analyze its behavior, and (3) we design an efficient algorithm for card game playing using Monte Carlo Simulation. Finally we construct a unified methodology for simulating brain functions based on the above results., 23300055
01 Apr. 2011 - 31 Mar. 2014

Dynamics of molecules of multiple electronic properties in laser fields and their control
KONO Hirohiko; OHTSUKI Yukiyoshi; HOKI Kunihito
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Tohoku University, Grant-in-Aid for Scientific Research on Priority Areas, We investigated the dynamics of molecules interacting with near-infrared intense laser pulses by using the time-dependent adiabatic state approach developed. The results for C60 indicate that the mode selectivity of vibrational excitation can be achieved by a pulse train, i.e., by changing the intervals between pulses. Time-dependent multiconfiguration theory is also developed to investigate the multielectron (ionization) dynamics of molecules. We have demonstrated that nuclear vibration is nonadiabatically coupled to the ring current of π electrons., 18066002
2006 - 2009

Theoretical design and analysis of nanomachines by using molecular dynamics control technique
HOKI Kunihito
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Tohoku University, Grant-in-Aid for Young Scientists (Start-up), 研究代表者がこれまでに研究してきた分子ダイナミクス制御・レーザー制御理論に基づいた, ナノマシンの理論設計・実験結果の解析・機能分子の運動の観測手段の提案を目指して研究を進めた. 特に, 分子モーターの人工合成に必要と思われる基礎理論の構築を目指した研究を行った. また, 第一原理分子動力学法によりモーター分子の運動を評価して回転運動の伝達や散逸の機構を明らかにした., 19850001
2007 - 2008

Theoretical study on quantum control of photo-induced electron and nuclear dynamics of chiral molecules and generation of their functionality
FUJIMURA Yuichi; KONO Hirohiko; HOKI Kunihito
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Tohoku University, Grant-in-Aid for Scientific Research (B), Recently considerable attention has been directed to control of ultra-fast electron and nuclear dynamics in photo-excited molecules. Especially, electron and unclear dynamics of chiral molecules are fascinating targets for generation of functionality such as molecular motors, switching and electron currents since these are induced by asymmetric electronic and nuclear potentials. In this project, we paid our attention to two subjects: (a) theoretical design of femto-second unidirectional rotation of molecular motor by using a quantum control method; (b) theoretical proposal of generation of pi-electron currents in chiral molecules by applying linearly polarized UV lasers. (a) A quantum optimal control simulation of a chiral molecular motor driven by femtosecond UV laser pulses was performed. A chiral molecule, (R)-2-methyl-cyclopenta-2, 4-dienecarboaldehyde, via the first singlet (nπ^*) excited state S_1 was treated as a molecular motor. Here, the aldehyde group acts as a roror part of the motor. Electric fields of femtosecond laser pulses driving both the regular rotation with a plus angular momentum and the reverse rotation with a minus one have been designed by using a global control method. The mechanisms of the unidirectional rotations have been clarified by analyzing the time-frequency-resolved spectrum of the electric fields of the optimal laser pulses and by resolving the temporal behaviors of rotational wave packets both in S_0 and S_1. The mechanism of the regular rotation is similar to that obtained by a conventional pump-dump pulse method. A new control mechanism has been proposed for the reverse rotation that cannot be driven by a simple pump-dump pulse method. (b) We have demonstrated that π electrons in a chiral aromatic molecule can be rotated along its ring by using a linearly polarized laser pulse. This indicates that molecular chirality can also be a source of directional ring currents because a nonhelical photon has no angular momentum. π-Electron dynamics reflects the asymmetry of the molecule itself. We have shown that the rotation direction of π electrons depends on the polarization direction of the applied pulse relative to the spatial configuration of each enantiomer on the basis of a three-level model analysis. We have performed optimal control simulations of π-electron rotation (ring current) in a six-membered control pulse at the maxima is a two-color laser field resonant with the quasi-degenerate states. The relative phase between the two frequency components is a crucial parameter for determination of the rotation direction of π-electrons at the end of control. Control scheme of π-electron rotation suggested by optimal control simulations is control in frequency domain by a two-color laser field while π-electron rotation can also be controlled in time domain by a central-peak laser pulse, e.g., a sin^2 or Gaussian pulse. In this research project, we have developed a fundamental basis of control of ultrafast electrons and vibrational states of chiral molecules by using linearly polarized lasers., 17350004
2005 - 2007